What Researchers Did
A case report described treatment of a patient who developed a blocked blood vessel in the upper lip area after a hyaluronic acid filler injection, who was treated first with the enzyme hyaluronidase and then with nine sessions of HBOT at 284 kPa (approximately 2.8 ATA) over seven days.
What They Found
The patient recovered fully. The authors note that vascular occlusion from facial fillers is a cosmetic emergency that can lead to permanent tissue death or blindness if not treated urgently, and that HBOT is increasingly being reported as helpful in these cases despite the lack of formal controlled trials.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
This is a single case report; the contribution of HBOT versus hyaluronidase alone to the patient's recovery cannot be determined without a controlled comparison.